IUSBX — Voya U.s. Bond Index Portfolio
Data updated: 2026-08-24
IUSBX — Voya U.s. Bond Index Portfolio. Long Total / Aggregate Bond · $540.32M AUM · 0.76% expense ratio. Holdings, fees, performance and SEC filings.
IUSBX Fund Overview
IUSBX — Voya U.s. Bond Index Portfolio is a US mutual fund managed by Voya VARIABLE PORTFOLIOS INC, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Voya VARIABLE PORTFOLIOS INC
- Category: Long Total / Aggregate Bond
- Assets under management: $540.32M
- 1-year return: 2.9%
- Ticker: IUSBX
- SEC CIK: 0001015965
- SEC series ID: S000021221
- Share class ID: C000074923
IUSBX Holdings
Top 10 holdings of Voya U.s. Bond Index Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 8.25% |
| United States Of America - Bureau Of The Public Debt | 6.18% |
| United States Of America - Bureau Of The Public Debt | 5.35% |
| United States Of America - Bureau Of The Public Debt | 4.93% |
| United States Of America - Bureau Of The Public Debt | 4.04% |
| United States Of America - Bureau Of The Public Debt | 3.42% |
| United States Of America - Bureau Of The Public Debt | 2.62% |
| United States Of America - Bureau Of The Public Debt | 2.31% |
| United States Of America - Bureau Of The Public Debt | 1.76% |
| Concord Minutemen Capital Company LLC | 1.47% |
IUSBX Portfolio Allocation
Asset-class allocation of Voya U.s. Bond Index Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 72.6% |
| Securitized | 25.6% |
| Cash & Equivalents | 2.5% |
| Other | 1.5% |
IUSBX Performance
Total returns for IUSBX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.3% |
| 1 year | 2.9% |
| 3 years (annualised) | 3.3% |
| 5 years (annualised) | -0.7% |
IUSBX Risk Information
Risk metrics for IUSBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.0%
IUSBX Costs and Fees
IUSBX costs about $76 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.76%
- Gross expense ratio: 0.89%
- Portfolio turnover: 420%
- Brokerage commissions: 0.49 bps of average net assets (SEC N-CEN)
IUSBX Cashflows
Over the 12 months to 2026-06, Voya U.s. Bond Index Portfolio had net outflows of $849.89M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $16.78M |
| 2026-05 | −$9.69M |
| 2026-04 | $21.06M |
| 2026-03 | $48.36M |
| 2026-02 | −$43.45M |
| 2026-01 | $26.89M |
IUSBX Debt Constituents
Largest debt holdings of Voya U.s. Bond Index Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 8.25% |
| United States Of America - Bureau Of The Public Debt | 6.18% |
| United States Of America - Bureau Of The Public Debt | 5.35% |
| United States Of America - Bureau Of The Public Debt | 4.93% |
| United States Of America - Bureau Of The Public Debt | 4.04% |
| United States Of America - Bureau Of The Public Debt | 3.42% |
| United States Of America - Bureau Of The Public Debt | 2.62% |
| United States Of America - Bureau Of The Public Debt | 2.31% |
| United States Of America - Bureau Of The Public Debt | 1.76% |
| United States Of America - Bureau Of The Public Debt | 1.30% |
IUSBX Prospectus and SEC Filings
Official Voya U.s. Bond Index Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-27
- Prospectus (485BPOS) — filed 2025-04-28
- Prospectus (485BPOS) — filed 2024-04-25
- Portfolio holdings (N-PORT) — filed 2026-08-24
- Portfolio holdings (N-PORT) — filed 2026-06-01
- Portfolio holdings (N-PORT) — filed 2026-02-27
- Annual census (N-CEN) — filed 2026-03-13
- Annual census (N-CEN) — filed 2025-03-17
Related Funds
Other Long Total / Aggregate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.